CN210875780U - Multi-gradient magnetic force adjustable dry separator - Google Patents
Multi-gradient magnetic force adjustable dry separator Download PDFInfo
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- CN210875780U CN210875780U CN201921187219.1U CN201921187219U CN210875780U CN 210875780 U CN210875780 U CN 210875780U CN 201921187219 U CN201921187219 U CN 201921187219U CN 210875780 U CN210875780 U CN 210875780U
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 242
- 238000000926 separation method Methods 0.000 claims abstract description 30
- 239000012141 concentrate Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000002000 scavenging effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 description 49
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 230000009471 action Effects 0.000 description 11
- 238000012216 screening Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 7
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- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
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- 238000005192 partition Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a many gradients magnetic force adjustable dry separation machine, including frame, first gradient magnetic bed, second gradient magnetic bed, sweep and select cylinder, first branch ore deposit conveyer and second branch ore deposit conveyer, first gradient magnetic bed is installed the upper portion of frame, second gradient magnetic bed are installed the middle part of frame is swept and is selected the cylinder and install the lower part in the frame, and first gradient magnetic bed is connected through fixing the first branch ore deposit conveyer in the frame with second gradient magnetic bed, and second gradient magnetic bed and sweep and select the cylinder to connect through fixing the second branch ore deposit conveyer in the frame, and the top of frame sets up the feed inlet, and the bottom is equipped with the ore outlet. The utility model discloses a multistage combined type ore dressing has guaranteed that concentrate product quality is stable, selects separately thoroughly, and it is big once to throw the tail volume.
Description
Technical Field
The utility model relates to a dry separation machine, especially a dry separation machine of many gradients magnetic force adjustable.
Background
Along with the continuous reduction of iron ore resources, the grade of the iron ore resources is gradually reduced, and the multistage magnetic separation equipment is more and more paid more attention by people. At present, the conventional secondary roller is adopted for carrying out an independent three-section dry separation configuration form in most mines: and (3) roughly separating and recovering strong-magnetic magnetite by using a weak-magnetic roller, feeding a coarse-magnetic tailing product into a medium-magnetic roller to sweep and separate strong-magnetic minerals, and finally, recovering the weak magnetism of the medium-magnetic tailing by using a strong-magnetic roller.
The conventional cylinder dry separator realizes the separation of magnetic particles and non-magnetic particles by utilizing the centrifugal force generated by the rotation of a separation cylinder and the action of the gravity of the particles and the magnetic force of the cylinder, and has the following problems due to the limitation of the structural form and the separation performance: firstly, magnetic substances are relatively seriously mixed, so that the grade improvement range of the concentrate is limited; secondly, the waste throwing rate is low; thirdly, the tailings are not clearly separated, so that the grade of the tailings is higher.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a many gradients magnetic force adjustable dry separation machine realizes multistage combined type ore dressing, guarantees that concentrate product quality is stable, selects separately thoroughly, and magnetic strength's regulation adapts to the magnet ore material of different grade type simultaneously.
The utility model provides a technical problem adopted scheme be:
the utility model provides a many gradients magnetic force adjustable dry separation machine, includes frame, first gradient magnetic bed, second gradient magnetic bed, sweeps and selects cylinder, first branch ore deposit conveyer and second branch ore deposit conveyer, first gradient magnetic bed is installed the upper portion of frame, the second gradient magnetic bed is installed the middle part of frame, it installs to sweep the selection cylinder the lower part of frame, first gradient magnetic bed and second gradient magnetic bed are through fixing first branch ore deposit conveyer in the frame is connected, second gradient magnetic bed and sweep and select the cylinder through fixing divide the ore deposit conveyer to connect in the second in the frame, the top of frame sets up the feed inlet, and the bottom is equipped with the ore discharge mouth.
The first gradient magnetic bed is used for completing the first screening of materials under the action of gravity, magnetic force, centrifugal force and the like, and separating concentrate and tailings; the second gradient magnetic bed is used for completing second screening of materials under the action of gravity, magnetic force, centrifugal force and the like, and separating middlings and tailings; and the scavenging roller is used for finishing the third screening of the materials under the action of gravity, centrifugal force and the like to separate middlings and tailings. The structure realizes three-level gradient mineral separation, ensures thorough separation, effectively reduces the content of magnetic iron in tailings, removes nonmagnetic materials in mineral aggregate, improves the purity or grade of the magnetic materials, reduces the material grinding amount and reduces the production cost of post-processing.
Preferably, the first gradient magnetic bed and the second gradient magnetic bed have the same structure, and the first ore-dividing conveyor and the second ore-dividing conveyor have the same structure. The magnetic strength of the first gradient magnetic bed is weak relative to that of the second gradient magnetic bed, and magnetite, namely concentrate, with the maximum magnetic strength in materials can be screened out.
Preferably, the first gradient magnetic bed comprises a magnetic drum, a transmission cylinder, a conveyor belt, a first magnetic system and a second magnetic system, the magnetic drum is mounted at one end of the upper portion of the frame, the transmission cylinder is mounted at the other end of the upper portion of the frame, the conveyor belt is wound on the magnetic drum and the transmission cylinder, the first magnetic system is mounted at the inner side close to the upper surface of the conveyor belt, and the second magnetic system is mounted at the inner side close to the lower surface of the conveyor belt. The beneficial effect who adopts this step is that first gradient magnetic bed and second gradient magnetic bed not only do benefit to the magnetic drum and carry out the sorting of material, simultaneously, it all is equipped with first magnetism system and second magnetism system, wherein, first magnetism system mainly realizes that magnetic force fully overturns the iron ore material, it is serious to solve magnetic material and non-magnetic material parcel inclusion, there are the separation effect poor, separate not thorough scheduling problem, the second magnetism system of first gradient magnetic bed is used for adsorbing the material that magnetic force is strong, the sorting concentrate, improve the purity taste of concentrate. The second magnetism in the second gradient magnetic bed is used for adsorbing materials with relatively weaker magnetic force and sorting middlings.
Preferably, the ore outlet comprises a first tailing outlet, a concentrate outlet, a middle ore outlet and a second tailing outlet, the first tailing outlet is located below the magnetic drum, the concentrate outlet is located below the transmission cylinder of the first gradient magnetic deposit, the middle ore outlet is located below the transmission cylinder of the second gradient magnetic deposit and the scavenging drum, and the second tailing outlet is located below one side of the middle ore outlet, which is far away from the scavenging drum.
Preferably, the first magnetic system comprises a plurality of first permanent magnets fixed on the rack, the first permanent magnets are arranged at intervals along the moving direction of the upper surface of the conveying belt, and the N poles and the S poles of the first permanent magnets are alternately arranged. The beneficial effects of this step of adoption are that the N utmost point and the S utmost point of first permanent magnet are arranged in turn, are favorable to the material to overturn under the magnetic force effect, improve the separation effect of magnetic material and non-magnetic material.
Preferably, the second magnetic system comprises a plurality of second permanent magnets fixed on the screw rod lifter or the electromagnetic disc, the screw rod lifter or the electromagnetic disc is fixed on the rack, and the second permanent magnets are arranged at intervals along the moving direction of the lower surface of the conveying belt. The step has the advantages that the height of the lead screw is controlled, and the length of the magnetic line of the second permanent magnet is controlled, so that the magnetic field intensity is controlled, and the magnetic intensity of the conveying belt passing through the second permanent magnet is further controlled; or the second permanent magnet is fixedly connected with the electromagnetic disc, the electromagnetic disc is electrified, and the adjustment of the strength of the magnetic force of the second permanent magnet is realized by controlling the magnitude of the current, so that the strength of the magnetic force below the first gradient magnetic bed and the second gradient magnetic bed is changed. The magnetic strength of the lower part of the first gradient magnetic bed and the second gradient magnetic bed is adjusted according to the actual situation of the magnetite ore material, so that the magnetite ores with different specifications can be separated and screened conveniently.
Preferably, an inner drum and a plurality of third permanent magnets are arranged in the magnetic drum, the inner drum is mounted on a shaft of the magnetic drum, the third permanent magnets are mounted on one side, far away from the transmission drum, of the magnetic drum, the third permanent magnets are radially arranged along the outer surface of the inner drum to form a semi-circular shape, and the N poles and the S poles of the third permanent magnets are alternately arranged. The magnetic roller is used for sorting materials under the action of gravity, magnetic force, centrifugal force and the like, one side of the magnetic roller, which is far away from the transmission cylinder, is provided with magnetic force, the materials with the magnetic force are adsorbed, the materials without the magnetic force are thrown out, namely tailings are separated, the materials are adsorbed on the conveying belt along with the movement of the conveying belt under the action of the magnetic force, when the materials move to one side of the magnetic roller without the magnetic force, the materials fall onto the first ore separation conveying belt or the second ore separation conveying belt due to the loss of the magnetic force, and then the materials (the materials which are not thrown out) are sorted again.
Preferably, the feeding ends of the first ore-dividing conveyor and the second ore-dividing conveyor are respectively positioned below one side of the magnetic drum close to the transmission drum. The beneficial effect of this step of adoption is that guarantee not throw out the material and fall into on first branch ore deposit conveyer or the second divides the ore deposit conveyer completely, the tailing all falls into the tailing mouth.
Preferably, the housing is fully enclosed. The method has the advantages of realizing totally-enclosed operation, reducing dust pollution and ensuring safety and environmental protection.
The utility model has the advantages that:
1. the utility model provides a many gradients magnetic force adjustable dry separation machine, first gradient magnetic bed, second gradient magnetic bed and sweep and select the cylinder and realized multistage combined type ore dressing, have guaranteed concentrate product quality stability, select separately thoroughly, and it is big once to throw the tail volume, and the tailing article can reach below 0.5 ~ 0.7. The enrichment of the concentrate powder with a grade of more than 50% can reach 90-95% (according to the situation of each ore). Meanwhile, the grade of the sorted concentrate powder is improved, the volume and the tonnage input to a lower stage are reduced, the grinding amount of a later stage process is reduced, and the grinding amount entering the later stage is reduced by about 50%.
2. The second magnetic system of the utility model comprises a plurality of second permanent magnets fixed on the screw rod lifter or the electromagnetic disc, and the distance between the second permanent magnets and the conveyer belt is adjusted by the screw rod lifter, thereby controlling the strength of the magnetic force; or the electromagnetic disc is connected with electric power to control the current, so that the strength of the magnetic force of the permanent magnet is adjusted. Therefore, the magnetic force can be set properly according to the type of the magnetite ore material, thereby being convenient for effectively separating and screening.
3. The utility model provides a frame is totally enclosed, has realized totally enclosed operation, safety ring protects.
Drawings
Fig. 1 is a schematic structural view of a multi-gradient magnetic force adjustable dry separator according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first gradient magnetic bed in one embodiment;
FIG. 3 is a schematic diagram of a second magnetic system in one embodiment;
FIG. 4 is a schematic diagram of a second magnetic system in one embodiment;
FIG. 5 is a schematic view showing the structure of a magnetic drum according to an embodiment;
wherein: 1-a frame; 2-a first gradient magnetic bed; 3-a second gradient magnetic bed; 4-a scavenging drum; 5-a first ore separation conveyor; 6-a second ore sorting conveyor;
101-a feed port; 102-a mine outlet;
201-a magnetic drum; 202-a transmission cylinder; 203-a conveyor belt; 204-a first magnetic system; 205-a second magnetic system;
1021-first tailings mouth; 1022-concentrate mouth; 1023-middle mine mouth; 1024 — second tailings mouth;
2011-inner drum; 2022-third permanent magnet;
2031-upper surface; 2032-lower surface;
2051-a second permanent magnet; 2052-lead screw lifter; 2053-electromagnetic disc.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "radial", and the like, are used in the orientations and positional relationships indicated in the drawings, which are used for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a many gradients magnetic force adjustable dry separation machine has realized multistage combined type ore dressing, has guaranteed that concentrate product quality is stable, selects separately thoroughly, and it is big once to throw the tail volume, and the tailing article can reach below 0.5 ~ 0.7. The enrichment of the concentrate powder with a grade of more than 50% can reach 90-95% (according to the situation of each ore). The grade of the sorted concentrate powder is improved, the volume and the tonnage input to the lower stage are reduced, the grinding amount of the later stage process is reduced, and the grinding amount entering the later stage is reduced by about 50%.
Referring to fig. 1, the multi-gradient magnetic force adjustable dry separator comprises a frame 1, a first gradient magnetic bed 2, a second gradient magnetic bed 3, a scavenging drum 4, a first ore sorting conveyor 5 and a second ore sorting conveyor 6, wherein the first gradient magnetic bed 2 is installed on the upper portion of the frame 1, the second gradient magnetic bed 3 is installed in the middle portion of the frame 1, the scavenging drum 4 is installed on the lower portion of the frame 1, the first gradient magnetic bed 2 and the second gradient magnetic bed 3 are connected through the first ore sorting conveyor 5 fixed on the frame 1, the second gradient magnetic bed 3 and the scavenging drum 4 are connected through the second ore sorting conveyor 6 fixed on the frame 1, a feeding port 101 is arranged at the top of the frame 1, and an ore discharge port 102 is arranged at the bottom of the frame 1.
The first gradient magnetic bed 2 and the second gradient magnetic bed 3 have the same structure, and the first ore-dividing conveyor 5 and the second ore-dividing conveyor 5 have the same structure. As shown in fig. 1, the first gradient magnetic bed 2 and the second gradient magnetic bed 3 are different only in length, and the first gradient magnetic bed 2 is longer than the second gradient magnetic bed 3.
During specific work, the first gradient magnetic bed 2 is used for screening concentrate and tailings, the second gradient magnetic bed 3 is used for screening middlings and tailings, and the scavenging roller is used for screening middlings and tailings. The magnetic force intensity of the first gradient magnetic bed 2, the second gradient magnetic bed 3 and the scavenging drum 4 can be set according to the property of the ferromagnetic ore materials and the specific situation of production requirements.
The first ore separating conveyor 5 and the second ore separating conveyor 6 are both in the prior art, are driven by a motor to operate and are respectively used for conveying the magnetic ores which are not thrown out to fall into the second gradient magnetic bed 3 and the scavenging drum 4 for secondary and tertiary screening.
In a preferred embodiment, referring to fig. 2, the first gradient magnetic bed 2 comprises a magnetic roller 201, a transmission cylinder 202, a conveyor belt 203, a first magnetic system 204 and a second magnetic system 205, wherein the magnetic roller 201 and the transmission cylinder 202 are connected by the surrounding conveyor belt 203, the magnetic roller 201 and the transmission cylinder 202 are mounted on the frame 1 by a bearing seat, a shaft of the transmission cylinder 202 is connected with a motor, the motor drives the transmission cylinder 202 to rotate, and the rotation speed can be set according to the ferromagnetic ore and the specific situation of the production requirement. As shown in fig. 1, the conveyer belt 203 is configured to move in a counterclockwise circulating manner, and since the conveyer belt 203 needs to carry magnetite material and is affected by the range of magnetic force lines, the conveyer belt 203 should be a high-strength thin conveyer belt, and is usually made of stainless steel.
The first magnetic system 204 is mounted on the inside near the upper surface 2031 of the conveyor belt 203, specifically, below the conveyor belt 203 moving leftward, where the first magnetic system 204 is fixed to the frame, and the second magnetic system 205 is mounted on the inside near the lower surface 2032 of the conveyor belt 203, i.e., above the conveyor belt 203 moving rightward, where the second magnetic system 205 is fixed to the frame.
In a preferred embodiment, referring to fig. 1, the bottom ore outlet 102 of the rack 1 comprises a first tailing outlet 1021, a concentrate outlet 1022, a middling outlet 1023 and a second tailing outlet 1024, wherein the first tailing outlet 1021 is located below the magnetic drum 201 of the first gradient magnetic bed 2, and a first tailing channel is arranged on one side of the rack 1 close to the magnetic drum 201 by using a partition 7 and is communicated with the first tailing 1022; the concentrate port 1022 is positioned below the transmission cylinder 202 of the first gradient magnetic bed 2, is also provided with a concentrate channel through the partition plate 7 and is communicated with the concentrate port; the middling port 1023 is positioned below the transmission cylinder 202 and the scavenging drum 4 of the second gradient magnetic bed 3, a middling channel is also arranged through a partition plate and is communicated with the middling port 1023; the lower part of the scavenging drum 4 is provided with a second tailing port 105 through a partition plate, and the second tailing port is positioned below the side far away from the middling port 1023.
In a preferred embodiment, referring to fig. 2, a plurality of first permanent magnets are directly mounted on the frame 1 at the inner side of the upper surface 2031 of the conveyor 203 to form a first magnetic system 204, the first permanent magnets are arranged at intervals along the moving direction of the upper surface 2031 of the conveyor 203, and the N poles and S poles of the first permanent magnets are alternately arranged. The N utmost point and the S utmost point of first permanent magnet are arranged in turn for the magnetite ore material takes place to beat, is favorable to the material to overturn under the magnetic force effect, and the separation effect of iron ore commodity circulation is improved to abundant stirring.
In a preferred embodiment, referring to fig. 3, a plurality of second permanent magnets 2051 are mounted on the frame 1 at the inner side of the lower surface 2032 of the conveyor belt 203 to form a second magnetic system 205, the second permanent magnets 2051 are mounted on the frame 1 through a screw rod lifter 2052, the length of magnetic lines of force of the second permanent magnets 2051 is controlled by controlling the height of the screw rod lifter 2051, and when the second permanent magnets 2051 are far away from the lower surface 2032 of the conveyor belt 203, the magnetic force of the surface of the conveyor belt 203 moving to the right is weakened; when the second permanent magnets 2051 approach the lower surface 2032 of the conveyor belt 203, the magnetic force of the surface of the conveyor belt 203 moving rightward is enhanced.
Referring to fig. 4, the second permanent magnet 2051 and the electromagnetic disk 2053 are connected to and mounted on the rack 1, the electromagnetic disk 2053 is electrically conductive, and the strength of the magnetic force of the second permanent magnet 2051 is controlled by controlling the magnitude of the current. Thereby being convenient for adapt to the separation of the magnetite ore material of different situations.
In a preferred embodiment, referring to fig. 5, an inner roller 2011 and a plurality of third permanent magnets 2012 are disposed in the magnetic roller 201, the inner roller is mounted on a shaft of the magnetic roller, the third permanent magnets 2012 are mounted on a side of the magnetic roller 201 away from the transmission cylinder 202, the third permanent magnets 2012 are radially arranged along an outer surface of the inner roller 2011 to form a semi-circular shape, and N poles and S poles of the third permanent magnets 2012 are alternately arranged.
The magnetic roller 201 separates the magnetite ore materials by utilizing the action of gravity, magnetic force, centrifugal force and the like, one side of the magnetic roller 201 is provided with magnetic force, the other side of the magnetic roller 201 is free of magnetic force, tailings without magnetic force are thrown out, the magnetite ore with magnetic force is adsorbed on the conveying belt 203 on one side of the magnetic roller 201, when the conveying belt 203 moves to the position where the magnetic roller 201 does not have magnetic force, the magnetite ore adsorbed on the conveying belt falls onto the first ore separation conveying belt 5 or the second ore separation conveying belt 6 due to the disappearance of the magnetic force, and then the magnetite ore materials on the first ore separation conveying belt 5 or the second ore separation conveying belt 6 are further separated by the second magnetic system 204 through the magnetic force.
In addition, the sweeping roller 5 and the magnetic roller 201 have the same structure and are both half magnetic rollers, and the separation of magnetic particles and non-magnetic particles is realized by utilizing the centrifugal force and the action of the gravity and the magnetic force of the particles.
In a preferred embodiment, referring to fig. 1, the feeding ends of the first ore-dividing conveyor 5 and the second ore-dividing conveyor 6 are respectively located below the side of the magnetic roller 201 close to the driving cylinder 202, i.e. below the position where the magnetic roller has no magnetic force. The magnetic ore materials (magnetic ores absorbed on the magnetic roller) which are not thrown out are enabled to fall onto the first ore sorting conveyor 5 or the second ore sorting conveyor 6 along with the movement of the conveying belt 203 due to the disappearance of magnetic force, and then are further sorted, and the thrown tailings without magnetic force are thrown into a tailing port.
In another embodiment, the housing 1 is fully enclosed. Realize totally enclosed operation, reduce dust pollution, ensure safety ring protects. The total closing type is a conventional means in the field, and any means capable of being implemented in the technical field can be adopted.
Furthermore, the utility model provides a magnetic drum 201, driving cylinder 202 and conveyer belt 203 etc. all not contact with magnetism system, reduce mechanical wear, reduced the fault rate of equipment.
The utility model provides a dry separation machine still is equipped with control system, and control system divides the ore deposit conveyer 6 with first gradient magnetic bed 2, second gradient magnetic bed 3, sweep selection cylinder 4, first branch ore deposit conveyer 5 and second respectively and is connected for the normal operation of control dry separation machine. The utility model provides an installation of each part is the conventional means in this field.
The specific working process of the dry separator according to an embodiment shown in fig. 1 is as follows:
the magnetic force of the first gradient magnetic bed 2 is weaker than that of the second gradient magnetic bed 3, the magnetic force of the second gradient magnetic bed 3 is weaker than that of the sweeping roller 4, and the conveying belt 203 moves anticlockwise.
Firstly, the magnetic iron ore material falls onto a conveying belt 203 of a first gradient magnetic bed 2 from a feeding port 101 (the feeding port 101 is positioned at one end of a transmission cylinder 202 of the first gradient magnetic bed 2), the transmission cylinder 202 drives the conveying belt 203 to move anticlockwise under the drive of a motor, and the magnetic iron ore material continuously jumps on the conveying belt 203 due to the action of a first magnetic system 204, is fully overturned and stirred to ensure the separation of the magnetic material and the nonmagnetic material, moves rightwards along with the conveying belt 203, passes through a magnetic roller 201, and is thrown out under the action of gravity, magnetic force and centrifugal force, and is output from a first tailing port 1021; the magnetite materials which are not thrown out are adsorbed on the conveyer belt 203 due to the magnetic force of the magnetic roller 201, along with the continuous movement of the conveyer belt 203, when the conveyer belt 203 moves to the position where the magnetic roller 201 has no magnetic force, the magnetite materials on the conveyer belt 203 fall onto the first ore-separating conveyer 5, along with the movement of the first ore-separating conveyer 5, the magnetite materials move to the position below the second magnetic part 205 on the first gradient magnetic bed 2, the materials (concentrate) with the strongest magnetic force in the magnetite materials on the first ore-separating conveyer 5 are adsorbed on the surface of the conveyer belt 203 by the second magnetic part 205 on the first gradient magnetic bed 2 to continue moving, and when the materials move to the position close to the conveyer cylinder 202, the magnetic force on the surface of the conveyer belt 203 disappears, and the concentrate is thrown into the concentrate channel and is output from the concentrate port 1022;
the magnetite ore material left on the first ore-separating conveyor 5 and not adsorbed by the second magnetic system 205 on the first gradient magnetic bed 2 moves continuously along with the first ore-separating conveyor 5, when the magnetite ore material moves to the tail end of the first ore-separating conveyor 5, the magnetite ore material falls onto the second gradient magnetic bed 3 for secondary screening, the screening process is the same as that of the first gradient magnetic bed 2, the magnetic force of the second gradient magnetic bed 3 is stronger than that of the first gradient magnetic bed 2, tailings are thrown out by the magnetic roller 201, the magnetite ore material which is not thrown out falls onto the second ore-separating conveyor belt 6, the magnetite ore material on the second ore-separating conveyor belt 6 adsorbs the material (middlings) with stronger magnetic force on the surface of the conveyor belt 203 through the second magnetic system 205 on the second gradient magnetic bed 3, and the material (middlings) with stronger magnetic force is thrown into a middlings channel along with the movement of the conveyor belt 203 and is output from a middlings port 1023;
the magnetite ore material left on the second ore separating conveyor 6 continues to move and is conveyed to the scavenging drum 4, under the action of magnetic force, gravity and centrifugal force, tailings and middlings are separated, the tailings are thrown into the second tailing port 1024 to be output, and the middlings are thrown into the middlings port 1023 to be output. And then the separation of the magnetite materials is completed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a many gradients magnetic force adjustable dry separation machine, its characterized in that includes frame, first gradient magnetic bed, second gradient magnetic bed, sweeps and selects cylinder, first branch ore deposit conveyer and second branch ore deposit conveyer, first gradient magnetic bed is installed the upper portion of frame, the second gradient magnetic bed is installed the middle part of frame, sweep and select the cylinder to install the lower part of frame, first gradient magnetic bed and second gradient magnetic bed are through fixing first branch ore deposit conveyer in the frame is connected, second gradient magnetic bed and sweep and select the cylinder through fixing divide ore deposit conveyer to connect in the second in the frame, the top of frame sets up the feed inlet, and the bottom is equipped with the ore discharge mouth.
2. The dry separator with multiple adjustable gradient magnetic forces as claimed in claim 1, wherein the first gradient magnetic bed and the second gradient magnetic bed are identical in structure, and the first ore-dividing conveyor and the second ore-dividing conveyor are identical in structure.
3. The dry separator with adjustable multi-gradient magnetic force according to claim 1, wherein the first gradient magnetic bed comprises a magnetic roller, a transmission cylinder, a conveyor belt, a first magnetic system and a second magnetic system, the magnetic roller is installed at one end of the upper portion of the frame, the transmission cylinder is installed at the other end of the upper portion of the frame, the conveyor belt is wound on the magnetic roller and the transmission cylinder, the first magnetic system is installed at the inner side close to the upper surface of the conveyor belt, and the second magnetic system is installed at the inner side close to the lower surface of the conveyor belt.
4. The dry separator of claim 3, wherein the ore outlet comprises a first tailing port, a concentrate port, a middling port and a second tailing port, the first tailing port is located below the magnetic drum, the concentrate port is located below the driving cylinder of the first gradient magnetic deposit, the middling port is located below the driving cylinder of the second gradient magnetic deposit and the scavenging drum, and the second tailing port is located below one side, away from the middling port, of the scavenging drum.
5. The multi-gradient magnetic force adjustable dry separator according to claim 3, wherein the first magnetic system comprises a plurality of first permanent magnets fixed on the frame, the first permanent magnets are arranged at intervals along the moving direction of the upper surface of the conveying belt, and N poles and S poles of the first permanent magnets are alternately arranged.
6. The multi-gradient magnetic force adjustable dry separator according to claim 3, wherein the second magnetic system comprises a plurality of second permanent magnets fixed on a screw rod lifter or an electromagnetic disc fixed on the frame, the second permanent magnets being arranged at intervals along the moving direction of the lower surface of the conveyor belt.
7. The dry separator with the adjustable multi-gradient magnetic force as claimed in claim 3, wherein an inner drum and a plurality of third permanent magnets are arranged in the magnetic drum, the inner drum is mounted on the shaft of the magnetic drum, the third permanent magnets are mounted on one side of the magnetic drum far away from the transmission drum, the third permanent magnets are radially arranged along the outer surface of the inner drum to form a semi-circular ring shape, and N poles and S poles of the third permanent magnets are alternately arranged.
8. The dry separator with the adjustable multi-gradient magnetic force as claimed in claim 3, wherein the feeding ends of the first ore-dividing conveyor and the second ore-dividing conveyor are respectively positioned below one side of the magnetic drum close to the transmission drum.
9. The multi-gradient magnetic force adjustable dry separator according to any one of claims 1-8, wherein the frame is totally enclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187219.1U CN210875780U (en) | 2019-07-26 | 2019-07-26 | Multi-gradient magnetic force adjustable dry separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921187219.1U CN210875780U (en) | 2019-07-26 | 2019-07-26 | Multi-gradient magnetic force adjustable dry separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445767A (en) * | 2022-09-14 | 2022-12-09 | 承德星铄科技有限公司 | Multi-gradient parallel double-roller dry magnetic separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445767A (en) * | 2022-09-14 | 2022-12-09 | 承德星铄科技有限公司 | Multi-gradient parallel double-roller dry magnetic separator |
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